Send has two build configurations, development and production. Both can be run via `npm` scripts, `npm start` for development and `npm run build` for production. Webpack is our only build tool and all configuration lives in [webpack.config.js](../webpack.config.js).
`npm start` launches a `webpack-dev-server` on port 8080 that compiles the assets and watches files for changes. It also serves the backend API and frontend unit tests via the `server/bin/dev.js` entrypoint. The frontend tests can be run in the browser by navigating to http://localhost:8080/test and will rerun automatically as the watched files are saved with changes.
`npm run build` compiles the assets and writes the files to the `dist/` directory. `npm run prod` launches an Express server on port 1443 that serves the backend API and frontend static assets from `dist/` via the `server/bin/prod.js` entrypoint.
